From: Dan Carpenter Date: Sun, 21 Apr 2013 11:07:53 +0000 (+0300) Subject: staging/ozwpan: info leak in oz_cdev_ioctl() X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=2516ffac94e389cfeeb3abf2fd59d7c688a38f0c;p=deliverable%2Flinux.git staging/ozwpan: info leak in oz_cdev_ioctl() If we're not maxed out then oz_get_pd_list() leaves part of the "list" struct uninitialized. We should clear this so that no stack information is leaked to userspace. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index ba15aeb70672..27d06666c81a 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -253,6 +253,7 @@ static long oz_cdev_ioctl(struct file *filp, unsigned int cmd, case OZ_IOCTL_GET_PD_LIST: { struct oz_pd_list list; oz_trace("OZ_IOCTL_GET_PD_LIST\n"); + memset(&list, 0, sizeof(list)); list.count = oz_get_pd_list(list.addr, OZ_MAX_PDS); if (copy_to_user((void __user *)arg, &list, sizeof(list)))